Yiying Motorcycle motorcycle engines
EPA certification records list 16 highway motorcycle engine families from Yiying Motorcycle, model years 2009–2015. Rated power ranges from 2 to 14 kW, median 7 kW. All listed families displace 49 cc. The most families were certified in 2010 (3).
Engine families16
Engine models6
Model years2009–2015
Power range2–14 kWmedian 7 kW
Displacement49 cc – 49 cc
Rank in category#70of 108 makers by families
Families certified per year
Technical mix
Fuel
Gas16
Configuration
416
Cylinders
1 cyl16
Most certified engine models
Bz157Qmj1100078649S3Bz173Mn3Bz139Qmb11000042Bz139Qmb1Bz157Qmj1
Engine families
| Family | Model | Year | Displacement | Power | Fuel |
|---|---|---|---|---|---|
FYYGC.049BZU | Bz139Qmb | 2015 | 49 cc | 2 kW | Gas |
FYYGC0.15BZU | Bz157Qmj | 2015 | — | 7 kW | Gas |
EYYGC.049BZU | 49S | 2014 | 49 cc | 2 kW | Gas |
EYYGC0.15BZU | Bz157Qmj1100078 | 2014 | — | 7 kW | Gas |
DYYGC.049BZU | 49S | 2013 | 49 cc | 2 kW | Gas |
DYYGC0.15BZU | Bz157Qmj1100078 | 2013 | — | 7 kW | Gas |
CYYGC.049BZU | 49S | 2012 | 49 cc | 2 kW | Gas |
CYYGC0.15BZU | Bz157Qmj1100078 | 2012 | — | 7 kW | Gas |
BYYGC0.15BZU | Bz157Qmj1100078 | 2011 | — | 7 kW | Gas |
BYYGC0.28BZU | Bz173Mn | 2011 | — | 14 kW | Gas |
AYYGC.049BZU | Bz139Qmb1100004 | 2010 | 49 cc | 2 kW | Gas |
AYYGC0.15BZU | Bz157Qmj1100078 | 2010 | — | 7 kW | Gas |
AYYGC0.28BZU | Bz173Mn | 2010 | — | 14 kW | Gas |
9YYGC.049BZU | Bz139Qmb1100004 | 2009 | 49 cc | 2 kW | Gas |
9YYGC0.15BZU | Bz157Qmj1100078 | 2009 | — | 2 kW | Gas |
9YYGC0.28BZU | Bz173Mn | 2009 | — | 14 kW | Gas |
Other motorcycle engines makers
Source
US Environmental Protection Agency engine certification data. Model year and manufacturer are decoded from EPA engine family codes (EPA codes:YYG). An engine family is a group of engines certified together; one family can cover several power ratings.
Engine calculators
Torque, power and BMEPPower from torque and RPM · Torque from power and RPM · Brake mean effective pressure (BMEP)Engine displacementDisplacement from bore, stroke and cylinders · Bore from displacement and stroke · Stroke from displacement and boreBSFC and thermal efficiencyBSFC from power and fuel flow · Fuel flow from power and BSFC · Thermal efficiency from BSFCCompression ratioStatic compression ratio · Chamber volume for a target compression ratio · Theoretical compression pressurePiston speedMean piston speed · Maximum RPM for a piston speed limit · Rod ratio, piston velocity and acceleration
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